package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.SkuInfoDao;
import com.atguigu.gulimall.product.entity.SkuImagesEntity;
import com.atguigu.gulimall.product.entity.SkuInfoEntity;
import com.atguigu.gulimall.product.entity.SpuInfoDescEntity;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SkuSaleAttrVo;
import com.atguigu.gulimall.product.vo.SpuBaseAttrVo;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {

    @Autowired
    private SkuImagesService skuImagesService;
    @Autowired
    private SpuInfoDescService spuInfoDescService;
    @Autowired
    private AttrGroupService attrGroupService;
    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    private ThreadPoolExecutor executor;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SkuInfoEntity> wrapper = new QueryWrapper<>();
        String key= (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and(w->{
                w.eq("sku_id",key).or().like("sku_name",key);
            });
        }
        String catelogId= (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId) && !"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catalog_id",catelogId);
        }
        String brandId= (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }
        String min= (String) params.get("min");
        if (!StringUtils.isEmpty(min)){
            wrapper.ge("price",min);
        }
        String max= (String) params.get("max");
        if (!StringUtils.isEmpty(max) && !"0".equalsIgnoreCase(max)){
            wrapper.le("price",max);
        }

        IPage<SkuInfoEntity> page = this.page(new Query<SkuInfoEntity>().getPage(params), wrapper);
        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkusBySpuId(Long spuId) {
        List<SkuInfoEntity> skuInfoEntities = this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id", spuId));
        return skuInfoEntities;
    }

    @Override
    public SkuItemVo itemInfo(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo = new SkuItemVo();
        CompletableFuture<SkuInfoEntity> infoFuture = CompletableFuture.supplyAsync(() -> {
            // sku的基本信息
            SkuInfoEntity skuInfoEntity = getById(skuId);
            skuItemVo.setSkuInfoEntity(skuInfoEntity);
            return skuInfoEntity;
        }, executor);

        CompletableFuture<Void> saleFuture = infoFuture.thenAcceptAsync((res) -> {
            //获取sku销售属性组合
            List<SkuSaleAttrVo> skuSaleAttrVos = skuSaleAttrValueService.getSaleAttrBySpuId(res.getSpuId());
            skuItemVo.setSkuSaleAttrVos(skuSaleAttrVos);
        }, executor);

        CompletableFuture<Void> descFuture = infoFuture.thenAcceptAsync((res) -> {
            //    获取spu的介绍（图片）
            SpuInfoDescEntity spuInfoDescEntity = spuInfoDescService.getById(res.getSpuId());
            skuItemVo.setDesc(spuInfoDescEntity);
        }, executor);
        CompletableFuture<Void> baseFuture = infoFuture.thenAcceptAsync((res) -> {
            //    获取spu的规格参数信息
            List<SpuBaseAttrVo> spuBaseAttrVos = attrGroupService.getAttrGroupWithSpuId(res.getSpuId(), res.getCatalogId());
            skuItemVo.setSpuBaseAttrVos(spuBaseAttrVos);
        }, executor);


        CompletableFuture<Void> imgFuture = CompletableFuture.runAsync(() -> {
            // sku的图片信息
            List<SkuImagesEntity> skuImagesEntities = skuImagesService.list(new QueryWrapper<SkuImagesEntity>().eq("sku_id", skuId));
            skuItemVo.setSkuImg(skuImagesEntities);
        }, executor);
        CompletableFuture.allOf(saleFuture,descFuture,baseFuture,imgFuture).get();


        return skuItemVo;
    }

    @Override
    public List<String> getSkuAttrListToString(Long skuId) {
        return baseMapper.getSkuAttrListToString(skuId);
    }


}